Antonio Quatraro, MD; Giuseppe Consoli, MD; Mauro Magno, MD; Francesco Caretta, MD; Alberto Nardozza, MD; Antonio Ceriello, MD; Dario Giugliano, MD
Study Objective: To evaluate the usefulness and safety of hydroxychloroquine in patients with decompensated, treatment-refractory noninsulin-dependent diabetes mellitus.
Design: Prospective, randomized, placebo, double-blind 6-month trial.
Patients: Thirty-eight patients with noninsulin-dependent diabetes resistant to commonly used therapies (oral drugs, insulin, combination of insulin and oral drugs).
Interventions: Two study groups: one received insulin (n = 22) and the other, glibenclamide (n = 16). In each group, half of the patients were randomly allocated into two subgroups who continued the previous treatment but took either placebo tablets or hydroxychloroquine, 200 mg three times a day. The four subgroups were as follows: insulin and placebo (n = 11); insulin and hydroxychloroquine (n = 11); glibenclamide and placebo (n = 8); and glibenclamide and hydroxychloroquine (n = 8).
Measurements and Main Results: At 6 months, relevant and statistically significant improvement occurred in the 11 patients who received the insulin and hydroxychloroquine (glucose profile decrease, -11.7 mmol/L; 95% CI, -13.9 to -9.5, P = 0.001; glycated hemoglobin A1c decrease, -3.3%; 95% CI, -3.9 to -2.7, P = 0.001). No significant changes were seen in patients on placebo. The daily insulin dose in patients treated with the combined insulin and hydroxychloroquine therapy had to be reduced an average of 30%. No important side effects were detected.
Conclusions: Combining antidiabetic therapy with hydroxychloroquine in decompensated, treatment-refractory patients with noninsulin-dependent diabetes may help to break the vicious circle of hyperglycemia and lead to better management of the disease.
Quatraro A, Consoli G, Magno M, et al. Hydroxychloroquine in Decompensated, Treatment-Refractory Noninsulin-Dependent Diabetes Mellitus: A New Job for an Old Drug?. Ann Intern Med. 1990;112:678–681. doi: 10.7326/0003-4819-112-9-678
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Published: Ann Intern Med. 1990;112(9):678-681.
Cardiology, Coronary Risk Factors, Diabetes, Endocrine and Metabolism.
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